@RELATION test5
@ATTRIBUTE attr0 REAL
@ATTRIBUTE attr1 REAL
@ATTRIBUTE attr2 REAL
@ATTRIBUTE attr3 REAL
@ATTRIBUTE class {class0, class1, class2, class3}
@DATA
0.1, 0.2, 0.3, 0.4,class1
-0.1, -0.2, -0.3, -0.4,class2
1, 2, 3, 4,class3